27638413 has 8 divisors (see below), whose sum is σ = 31924800. Its totient is φ = 23647680.

The previous prime is 27638411. The next prime is 27638417. The reversal of 27638413 is 31483672.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 27638413 - 2¹ = 27638411 is a prime.

It is a super-3 number, since 3×27638413³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27638411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73713 + ... + 74086.

It is an arithmetic number, because the mean of its divisors is an integer number (3990600).

Almost surely, 2^27638413 is an apocalyptic number.

It is an amenable number.

27638413 is a deficient number, since it is larger than the sum of its proper divisors (4286387).

27638413 is a wasteful number, since it uses less digits than its factorization.

27638413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147827.

The product of its digits is 24192, while the sum is 34.

The square root of 27638413 is about 5257.2248382583. The cubic root of 27638413 is about 302.3460975202.

The spelling of 27638413 in words is "twenty-seven million, six hundred thirty-eight thousand, four hundred thirteen".